Fast and easy payment options

Bet Loyalty Points

Great telephone and e-mail customer service

Early lines – always first book to post lines


To receive 100% bonus, you must enter bonus code Wunderdog

As long as you opened the account through our site, we will get your 100% bonus within 24 hours.

Normal customer service will not be able to provide 100% bonus so do not ask them.

Diamond Sportsbook International (DSI) is the leader in providing safe, legal and secure online gambling on nfl football, college football, horse racing, basketball, mlb baseball, hockey, NASCAR, boxing or any of your favorite sporting events from any location in the world.

You will save time and money with our state-of-the-art online sports betting center. Our streamlined online gambling process makes it fast and easy for you to bet on sports. Your winning wagers are credited to your sports betting account moments after the game concludes. We offer same-day payouts to anywhere in the world! When you bet on sports with Diamond Sportsbook and Casino, you have one account number for sports betting in the sportsbook, online casino gambling in the Diamond online casino, thoroughbred and quarter horse racing, and our automated online office pools system.

DSI is powered by industry stalwart BetCRIS – a company with over 20 years of operation.


  • 16 Years in Operation – Online Since 1998
  • Federally Licensed in the Republic of Costa Rica
  • DSI Casino CFG – Fair Gaming Certified
  • 24/7 live chat

Join Diamond Sportsbook via this link to claim your 100% Wunderdog Sign-up Bonus.